In-Vehicle Broadcast Planning for Automated-to-Manual Drive Handover

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Solution Overview

Problem

Current systems for providing information to drivers in automated vehicles lack effective timing and relevance of broadcast data, particularly during transitions between automated and manual driving modes, leading to reduced driver attention and engagement.

Innovation Solution

A system that includes a broadcast server generating broadcast plans based on the vehicle's route, automated drive level, and occupant actions, using a network to acquire and transmit relevant content such as road information, advertisements, and news, ensuring timely and engaging information delivery to the driver.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If information is continuously presented to the driver during automated drive, then driver awareness of surrounding information is improved, but driver attention may be reduced due to excessive or irrelevant information

Engineering Contradiction:
Improvedriver awareness of surrounding informationVSAvoiddriver attention
Core Design Contradiction:
Loss of informationVSProductivity

Solution Approach 1:

The system dynamically changes the parameters of information presentation by adjusting the information intensity of broadcast data based on the automated drive level. When the automated drive level is higher (more automation), the system increases information intensity to maintain driver awareness, while when automation level is lower, it reduces intensity to preserve driver attention. This resolves the contradiction by adapting information delivery parameters to the current operational context.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The broadcast plan generation unit dynamically generates and updates broadcast plans in real-time based on changes in automated drive level and vehicle state. The system transitions from static information presentation to dynamic adaptation, where the type, amount, and intensity of broadcast information automatically adjust according to the current drive mode and surrounding conditions, thereby maintaining both driver awareness and attention simultaneously.

Inventive Principle:
Principle #15Dynamics

2Loss of information

If broadcast data is provided during transitions between automated and manual driving modes, then driver information availability is improved, but timing and relevance of information may deteriorate

Engineering Contradiction:
Improvedriver information availabilityVSAvoidtiming and relevance of information
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system performs preliminary actions by detecting transitions between automated and manual driving modes in advance and proactively adjusting the broadcast plan before the transition completes. The broadcast plan generation unit anticipates the driver's information needs during mode transitions and prepares relevant information ahead of time, ensuring that information is available when the driver actually needs it, rather than providing generic continuous information that may be mistimed or irrelevant.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the broadcast plan generation unit continuously monitors the automated drive level and vehicle state, then adjusts information presentation based on this feedback. During mode transitions, the system receives feedback about the transition state and dynamically modifies the broadcast content timing and relevance accordingly, creating a closed-loop system that adapts information delivery to actual driver needs in real-time.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11561555B2Control apparatus, system, computer readable storage medium and control method
Publication Date: 2023.01.24 HONDA MOTOR CO LTD
  • US11561555B2 patent drawing
  • US11561555B2 patent drawing
  • US11561555B2 patent drawing

AI summary

Provided is a control apparatus for controlling broadcast data to be broadcasted to an occupant of a movable object with an automated drive function, comprising: a travelling road identification unit for identifying a predetermined travelling road of the movable object corresponding to a destination set in the movable object; a setting unit for setting, according to the predetermined travelling road, a recommended switching point for switching predetermined automated drive to driver subjected manual drive in the predetermined travelling road, and setting predetermined passage time when the movable object passes through the recommended switching point; and a broadcast plan generation unit for generating a broadcast plan for broadcasting predetermined broadcast data to an occupant of the movable object according to the recommended switching point; wherein the broadcast plan generation unit determines an order of the broadcast data to be broadcasted within a predetermined period before or after the recommended switching point.